or
2 answers
1.0K+ views
I have a requirement to validate an email address and web address for basic format validity in a custom grid popup. All standard data annotated validation works such as required, length etc in the popup but adding the validation for the email address and web address by implementing the IValidatableObject interface on my model and adding the necessary code in a Validate method doesn't produce the required effect. At first pass, the popup closes and an error is displayed at the bottom of the grid view (as it would with an inline editable grid). I've followed the example code provided, albeit for MVC, to handle server side validation errors in the Error event of the datasource of the grid and while it stops the popup from closing, it will not display the error messages against the relevant controls - in fact it displays nothing at all. I've not been able to debug the message handling code to establish why it is not able to connect the error message (correctly returned) with the relevant control of the popup. Can you please advise?
10 answers
1.2K+ views
Hello,
We recently updated our web app to .Net Core 2.0, and we updated all of your tools as well to their latest versions. However, we noticed that the export to excel functionality that we have for one of our grids started running extremely slow all of a sudden, and we're not entirely sure why. If we have hundreds of entries that we need to export, when we click the "Export to Excel" button it spends all of its time trying to transfer the data before downloading and eventually the page crashes. I also noticed that it will try to transfer over 1GB of data which is way too much for what it should be. We did not have this issue before updating your tools, so we were wondering if something changed with how the export to excel functionality works with your latest updates to it (such as if the syntax for it is different than what it was before)? We did test the functionality on a small list of items, and it did export immediately. It's only with when we have hundreds of items to export when this happens. We checked to see if any of the .Net Core 2.0 updates or anything else new in our code could have affected the speed of it, but we couldn't find anything.
Thanks,
Jason
4 answers
147 views
Hello,
I am using a template within a template and I would like to use DropdownListFor. Although everything is rendered properly and the values are shown correctly, when I click on the right arrow it does not expand the list options.
Example:
@(Html.Kendo().DropdownListFor(m => m.IsPrincipal) .DataTextField("Text") .DataValueField("Value") .BindTo(new List<SelectListItem>() { new SelectListItem() { Text = "Yes", Value = "1" }, new SelectListItem() { Text = "No", Value = "0" }, new SelectListItem() { Text = "Test", Value = "2" } }) .HtmlAttributes(new { style = "width: 100%" }) )
Ianko
Telerik team
answered
on
12 Jul 2019
7 answers
555 views
Using PDFViewer and pdfjs processing in my view, the pdf file, once loaded in view the toolbar shows 6 pages, but the pdf content flows outside the containers as one long image, with all 6 pages shown.
Anyway to contain just one page at a time, or keep the content in a container?
Thanks,
MK
1 answer
261 views
Hi,
Is it possible to have an autocomplete input field in a form, ASP.NET Core, and send back for example customer name to the pagemodel?
Best regards,
Johan
Tsvetomir
Telerik team
answered
on
11 Jul 2019
1 answer
216 views
Does the TreeList have the ability to create have a dropdown selection for columns similar to the "Categories" on here:
https://demos.telerik.com/aspnet-core/grid/editing-custom
I followed everything on the page I believe but I can not get the dropdown to work for the TreeList.
Does the TreeList work that much differently?
Nikolay
Telerik team
answered
on
11 Jul 2019
4 answers
180 views
hello,
I am using a scheduler with ASP.NET Core 2.2 MVC app.(Example @(Html.Kendo().Scheduler<xxxScheduleViewModel>()
When I create an event, I'd like to change the default field names . For example , Instead of 'Title' , say 'Book event' (see picture)
Is this handled in Schema ? Any examples?
Thanks,
Peter
3 answers
326 views
Hello,
I am working with using a DateRangePicker with the calendar section always open and I have it in a sidebar. The problem I am having is that the calendar portion does not resize to fit the space it should be contained within. The multiselect I have in the same div work as expected and size down when the size of the window goes down but the calendar of the DateRangePicker instead stays the same size and starts to cover other elements on the page. Any ideas on how I could make the calendar resize properly?
Thanks,
Alex
Eyup
Telerik team
answered
on
10 Jul 2019
1 answer
79 views
hello,
This probably is not Kendo problem , but I am hoping someone has a suggestion.
I am using Visual Studio 2019 ver.16.1.15 , creating a ASP.NET MVC core 2.2 Application, with , and Cosmos DB datastore.
Scheduler Events are created in the this controller/action : .Create(create => create.Action("Create", "Crud"))
Recently I found 19,000 duplicate events, and I am trying to track down the root cause.
Is the controller/action being called over and over?
Or is Cosmos DB doing something unintended ?
Any ideas?
Thanks,Peter
0 answers
116 views
Hi.
I created custom editing popup and use it to insert na new element into Kendo Grid.
The ViewModel of this grid elements contains a Array so my popup template contains another grid with i whant tu use to fill the array in the viewModel but have no idea how to achive this. I know I have bind the grid with "ConfiguratorAttributs" array but I don know how i can do this.
The Careate method of my "Parent" grid always call my Controller passing ViewModel with null ConfiguratorAttributs element.
Can anyone help me deal with this?
